masslogger | 40b8775619731a4bafc6f6e6aaf1088d871a75dc510c7153fd226a7b2d1e2716

System Information Discovery

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-3751123196-3323558407-1869646069-1000\Control Panel\International\Geo\Nation	Ag Fee JUNE20_RevAB.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 1620 set thread context of 3964	1620	Ag Fee JUNE20_RevAB.exe	83

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s). Likely ransomware behaviour.

System Information Discovery
T1082

Checks processor information in registry 2 TTPs 3 IoCs

Processor information is often read in order to detect sandboxing environments.

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\CentralProcessor\0	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\~MHz	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\CentralProcessor\0\ProcessorNameString	dw20.exe

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

pid	Process
4752	schtasks.exe

Enumerates system info in registry 2 TTPs 2 IoCs

Query Registry

System Information Discovery

description	ioc	Process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\BIOS	dw20.exe
Key value queried	\REGISTRY\MACHINE\HARDWARE\DESCRIPTION\System\BIOS\SystemSKU	dw20.exe

Suspicious use of AdjustPrivilegeToken 4 IoCs

description	pid	Process
Token: SeRestorePrivilege	4504	dw20.exe
Token: SeBackupPrivilege	4504	dw20.exe
Token: SeBackupPrivilege	4504	dw20.exe
Token: SeBackupPrivilege	4504	dw20.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 1620 wrote to memory of 4752	1620	Ag Fee JUNE20_RevAB.exe	81
PID 1620 wrote to memory of 4752	1620	Ag Fee JUNE20_RevAB.exe	81
PID 1620 wrote to memory of 4752	1620	Ag Fee JUNE20_RevAB.exe	81
PID 1620 wrote to memory of 3964	1620	Ag Fee JUNE20_RevAB.exe	83
PID 1620 wrote to memory of 3964	1620	Ag Fee JUNE20_RevAB.exe	83
PID 1620 wrote to memory of 3964	1620	Ag Fee JUNE20_RevAB.exe	83
PID 1620 wrote to memory of 3964	1620	Ag Fee JUNE20_RevAB.exe	83
PID 1620 wrote to memory of 3964	1620	Ag Fee JUNE20_RevAB.exe	83
PID 1620 wrote to memory of 3964	1620	Ag Fee JUNE20_RevAB.exe	83
PID 1620 wrote to memory of 3964	1620	Ag Fee JUNE20_RevAB.exe	83
PID 1620 wrote to memory of 3964	1620	Ag Fee JUNE20_RevAB.exe	83
PID 3964 wrote to memory of 4504	3964	Ag Fee JUNE20_RevAB.exe	84
PID 3964 wrote to memory of 4504	3964	Ag Fee JUNE20_RevAB.exe	84
PID 3964 wrote to memory of 4504	3964	Ag Fee JUNE20_RevAB.exe	84

C:\Users\Admin\AppData\Local\Temp\Ag Fee JUNE20_RevAB.exe
"C:\Users\Admin\AppData\Local\Temp\Ag Fee JUNE20_RevAB.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious use of WriteProcessMemory
PID:1620
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\VFJqVfJDS" /XML "C:\Users\Admin\AppData\Local\Temp\tmp4E5E.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4752
- C:\Users\Admin\AppData\Local\Temp\Ag Fee JUNE20_RevAB.exe
  "{path}"
  2⤵
  - Suspicious use of WriteProcessMemory
  PID:3964
- - C:\Windows\Microsoft.NET\Framework\v2.0.50727\dw20.exe
    dw20.exe -x -s 772
    3⤵
    - Checks processor information in registry
    - Enumerates system info in registry
    - Suspicious use of AdjustPrivilegeToken
    PID:4504

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

1

Persistence

Scheduled Task

1

Privilege Escalation

Scheduled Task

1

Defense Evasion

Credential Access

Discovery

Query Registry

3

System Information Discovery

4